161184377 has 4 divisors (see below), whose sum is σ = 161948496. Its totient is φ = 160420260.

The previous prime is 161184367. The next prime is 161184409. The reversal of 161184377 is 773481161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773481161 = 761 ⋅1016401.

It is a cyclic number.

It is not a de Polignac number, because 161184377 - 2⁶ = 161184313 is a prime.

It is a super-3 number, since 3×161184377³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161184377.

It is not an unprimeable number, because it can be changed into a prime (161184347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381743 + ... + 382164.

It is an arithmetic number, because the mean of its divisors is an integer number (40487124).

Almost surely, 2^161184377 is an apocalyptic number.

It is an amenable number.

161184377 is a deficient number, since it is larger than the sum of its proper divisors (764119).

161184377 is an equidigital number, since it uses as much as digits as its factorization.

161184377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764118.

The product of its digits is 28224, while the sum is 38.

The square root of 161184377 is about 12695.8409331560. The cubic root of 161184377 is about 544.2197706770.

The spelling of 161184377 in words is "one hundred sixty-one million, one hundred eighty-four thousand, three hundred seventy-seven".